[andrewSF]

Yes, it's just parallel compression with lots of hi boost on one of the channels. Don't know of a plug-in that does this exactly. To save voices you could send your audio track to a pair of aux tracks. You have to watch your latency with this kind of thing (depends on what plugs you're using) or you may get unpleasant phasing between the tracks, but other than that it'll give you complete control over whatever plug-ins you want to tweak for each track. Some compressors have blend controls (I can only think of a couple of hardware units that do this, and no plugs offhand) which allow you to mix the compressed and uncompressed signals, but this won't give you the ability to EQ the two signals independently.